Clifton Collins Jr. is a vaqueroin waiting…

The 47-year-old Mexican American actor has joined the cast of Quentin Tarantino’s Once Upon a Time in Hollywood, which takes place in Los Angeles at the time of Charles Manson’s Sharon Tatemurders.

In addition to Collins, the Sony film will also star Damian Lewis, Luke Perry, Emile Hirsch, Dakota Fanning, Keith Jeffersonand Nicholas Hammondin supporting roles for a lineup that already includes Leonardo DiCaprio, Brad Pitt, Margot Robbie, Burt Reynolds, Timothy Olyphant, Michael Madsenand Tim Roth.

Lewis will play the iconic actor Steve McQueen; Fanning is set as Squeaky Fromme, the Manson disciple who later tried to assassinate President Gerald Ford; Hammond will play directorSam Wanamaker; and Hirsch is Jay Sebring, the Hollywoodhairstylist who was one of four victims in the Tate murders on Cielo Drive.

Perry is set to play Scotty Lancer, Collins is Ernesto The Mexican Vaquero, and Keith Jefferson is Land Pirate Keith.

The film has been referred to as a Pulp Fiction-like tapestry of stories set in L.A. in the summer of 1969, at the height of hippy Hollywood. The two lead characters are Rick Dalton (DiCaprio), former star of a Western televisionseries, and his longtime stunt double Cliff Booth (Pitt). Both are struggling to make it in a Hollywood they don’t recognize anymore. But Rick has a very famous next-door neighbor: Tate (Robbie).

The studio has set it for an August 9, 2019 release worldwide.